There's some bittersweet feelings about leaving the people here [in the White House]. 'Cause even though all the team you assemble, you know, you're going to stay in touch with 'em, it's not the same, you know? The band kind of breaks up.

A political consultant, when we first started thinking about Senate race, said, "You can have one funny name. You can be 'Barack Smith.' Or you can be 'Joe Obama.' But 'Barack Obama' - that's not gonna work."

I reiterated our hope that negotiations over the United Kingdom's exit from the E.U. will be conducted in a smooth and orderly and transparent fashion and preserve as closely as possible the economic and political and security relationships between the U.K. and E.U.

In America, we started the public school system very early in the century, and as a consequence we had more skilled workers than any nation on Earth, which meant that we were more productive than any nation on Earth.

In the first two years, when I had a strong majority in the House and the Senate, we were as productive as any administration has been since the '60s. I mean, we got a lot done.

America ranks 21st when it comes to math education. We rank 25th when it comes to science. We used to be number one in the proportion of college graduates. We now rank ninth. And at an age where knowledge, skills, are the determinant of how successful we're going to be, unless we reverse that we're going to keep slipping behind economically to a lot of other countries.

I look at some of the kids that I interact with, and they were born with so many disadvantages. And you could start off in your first interaction with them saying, "Unless they get a lot of compensatory help, they're not going to be able to compete; they're just so far behind, and they're wounded and they're hurt."